Stressful life experiences may be a cause of memory loss as a person ages. Glucocorticoids that are released during stress damage neurons that are located in the hippocampal region of the brain. Therefore, the more stressful situations that someone encounters, the more susceptible they are to memory loss later on. The CA1 neurons found in the hippocampus are destroyed due to glucocorticoids decreasing the release of glucose and the reuptake of glutamate. This high level of extracellular glutamate allow calcium to enter NMDA receptors which in return kills neurons. Stressful life experiences can also cause repression of memories where a person moves an unbearable memory to the unconscious mind. This directly relates to traumatic events in one's past such as kidnappings, being prisoners of war or sexual abuse as a child.
What is the cause of neuron loss due to stress?
high level of extracellular glutamate allow calcium to enter NMDA receptors

In more sophisticated computers there may be one or more RAM cache memories, which are slower than registers but faster than main memory. Generally computers with this sort of cache are designed to move frequently needed data into the cache automatically, often without the need for any intervention on the programmer's part.
RAM cache memory is slower than what?
registers

Until 2005, the United Nations General Assembly annually adopted a detailed resolution about the situation in Myanmar by consensus. But in 2006 a divided United Nations General Assembly voted through a resolution that strongly called upon the government of Myanmar to end its systematic violations of human rights. In January 2007, Russia and China vetoed a draft resolution before the United Nations Security Council calling on the government of Myanmar to respect human rights and begin a democratic transition. South Africa also voted against the resolution.
What did China and Russia both do in 2008 ?

vetoed a draft resolution before the United Nations Security Council calling on the government of Myanmar